Visualize Latest Observations from the Ambient Weather Stations

Imports

import glob
import xarray as xr
from bokeh.models.formatters import DatetimeTickFormatter
import hvplot.xarray
import holoviews as hv
from distributed import Client
import warnings

warnings.filterwarnings("ignore")
hv.extension('bokeh')

Start up a Dask Cluster

client = Client()
client

Client

Client-76a20ff4-1220-11f0-8a9c-000d3ad4625f

Connection method: Cluster object	Cluster type: distributed.LocalCluster
Dashboard: http://127.0.0.1:8787/status

Cluster Info

LocalCluster

2315edab

Dashboard: http://127.0.0.1:8787/status	Workers: 4
Total threads: 4	Total memory: 15.62 GiB
Status: running	Using processes: True

Scheduler Info

Scheduler

Scheduler-30b9a6e6-cfaf-4a60-9b03-90aa22cdcadf

Comm: tcp://127.0.0.1:36761	Workers: 4
Dashboard: http://127.0.0.1:8787/status	Total threads: 4
Started: Just now	Total memory: 15.62 GiB

Workers

Worker: 0

Comm: tcp://127.0.0.1:40775	Total threads: 1
Dashboard: http://127.0.0.1:35333/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:38803
Local directory: /tmp/dask-scratch-space/worker-kt62bgsy

Worker: 1

Comm: tcp://127.0.0.1:45307	Total threads: 1
Dashboard: http://127.0.0.1:41755/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:39469
Local directory: /tmp/dask-scratch-space/worker-3rs58d_7

Worker: 2

Comm: tcp://127.0.0.1:35551	Total threads: 1
Dashboard: http://127.0.0.1:33155/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:41851
Local directory: /tmp/dask-scratch-space/worker-f9sk5dyf

Worker: 3

Comm: tcp://127.0.0.1:37749	Total threads: 1
Dashboard: http://127.0.0.1:40275/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:41929
Local directory: /tmp/dask-scratch-space/worker-my8j6lic

Read the Sorted Data, Using the Last File

files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))

ds = xr.open_mfdataset(files[-60:])

---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
Cell In[3], line 3
      1 files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))
----> 3 ds = xr.open_mfdataset(files[-60:])

File ~/miniconda3/envs/instrument-cookbooks-dev/lib/python3.10/site-packages/xarray/backends/api.py:1597, in open_mfdataset(paths, chunks, concat_dim, compat, preprocess, engine, data_vars, coords, combine, parallel, join, attrs_file, combine_attrs, **kwargs)
   1594 paths = _find_absolute_paths(paths, engine=engine, **kwargs)
   1596 if not paths:
-> 1597     raise OSError("no files to open")
   1599 paths1d: list[str | ReadBuffer]
   1600 if combine == "nested":

OSError: no files to open

Plot the Data

formatter = DatetimeTickFormatter(hours="%d %b %Y \n %H:%M UTC")

variables = ['outdoor_temperature', 'outdoor_dewpoint', 'hourlyrainin', 'solarradiation']

panels = []
for variable in variables:
    panels.append(ds[variable].hvplot.line(x='time', by='station', xformatter=formatter))
hv.Layout(panels).cols(1)